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Autres articles (57)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (10173)
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ffmpeg exited with code 1 : Output with label 'videooutput' does not exist in any defined filter graph, or was already used elsewhere
12 avril 2022, par ThePrimeI'm using the https://www.npmjs.com/package/live-stream-radio module, but a few times i get this error using it. How could i solve it ? My code :


const NodeMediaServer = require('node-media-server');

const config = {
 rtmp: {
 port: 1935,
 chunk_size: 60000,
 gop_cache: true,
 ping: 30,
 ping_timeout: 60
 },
 http: {
 port: 8080,
 allow_origin: '*',
 mediaroot: 'F:/VMediaServer/mediaroot'
 },
 trans: { ffmpeg: 'C:/ffmpeg/bin/ffmpeg.exe', tasks: [ { app: 'live', ac: 'aac', vc: 'libx264', hls: true, hlsFlags: '[hls_time=2:hls_list_size=3:hls_flags=delete_segments]', dash: true, dashFlags: '[f=dash:window_size=3:extra_window_size=5]' } ] }
};

var nms = new NodeMediaServer(config)
nms.run();


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How to handle errors during downloading (using videomanifest) video and make it more robust
5 mai 2023, par Wakan TankaI'm using ffmpeg to download videos from streaming site following way :


ffmpeg.exe -i videomanifest -codec copy video.mp4 


This works, but it has some drawbacks. The problem is that sometimes my (or maybe error on server side etc.) internet connection fails, and I'm forced to restart the whole download again. I would like to make this process more robust. It would be great if
ffmpegcan continuously split video to several smaller files during the download and if download will fail thenffmpegwill continue (or maybe skip) from broken part. After downloading all parts I will concat them manually, this is no problem. Please treat above text just like an example, any other solution which will make downloading process more robust is welcomed. Is this possible withffmpeg?

Here is example of
videomanifest(this is not a fully functional file, important url parts were deleted due to privacy, so please treat it as an example for demonstration purposes)

<mpd type="static" maxsegmentduration="PT5.000S" profiles="urn:mpeg:dash:profile:isoff-live:2011" mediapresentationduration="PT0H0M4961.472S" minbuffertime="PT4.500S" xmlns="urn:mpeg:DASH:schema:MPD:2011">
 <baseurl>https://........................</baseurl>
 <period>
 <adaptationset contenttype="audio" mimetype="audio/mp4" segmentalignment="true" bitstreamswitching="true" codecs="mp4a.40.2">
 <contentprotection schemeiduri="urn:mpeg:dash:sea:2012">
 
 
 
 </contentprotection>
 <label>EnhancedAudio</label>
 <segmenttemplate timescale="44100" initialization="videotranscode?provider=Spo&amp;docId=https%3a%2...................">
 <segmenttimeline>
 <s d="221184" r="988"></s>
 <s d="49939"></s>
 </segmenttimeline>
 </segmenttemplate>
 <representation audiosamplingrate="44100" bandwidth="128000" codecs="mp4a.40.2"></representation>
 <representation audiosamplingrate="44100" bandwidth="192000" codecs="mp4a.40.2"></representation>
 </adaptationset>
 <adaptationset contenttype="audio" mimetype="audio/mp4" segmentalignment="true" bitstreamswitching="true" codecs="mp4a.40.2">
 <contentprotection schemeiduri="urn:mpeg:dash:sea:2012">
 
 
 
 </contentprotection>
 <label>OriginalAudio</label>
 <segmenttemplate timescale="44100" initialization="videotranscode?provider=Spo&amp;docId=https%3a%2f%2fstu">
 <segmenttimeline>
 <s d="221184" r="988"></s>
 <s d="49939"></s>
 </segmenttimeline>
 </segmenttemplate>
 <representation audiosamplingrate="44100" bandwidth="128000" codecs="mp4a.40.2"></representation>
 <representation audiosamplingrate="44100" bandwidth="192000" codecs="mp4a.40.2"></representation>
 </adaptationset>
 <adaptationset contenttype="video" mimetype="video/mp4" segmentalignment="true" bitstreamswitching="true" maxframerate="82690000/5512747" maxwidth="1920" maxheight="1080" codecs="avc1.4d0028">
 <contentprotection schemeiduri="urn:mpeg:dash:sea:2012">
 
 
 
 </contentprotection>
 <segmenttemplate timescale="15000" initialization="videotranscode?provider=Spo&amp;docId=https............">
 <segmenttimeline>
 <s d="74999" r="991"></s>
 <s d="22080"></s>
 </segmenttimeline>
 </segmenttemplate>
 <representation width="426" height="240" framerate="82690000/5512747" bandwidth="144000" codecs="avc1.4d401e"></representation>
 <representation width="852" height="480" framerate="82690000/5512747" bandwidth="480000" codecs="avc1.4d001f"></representation>
 <representation width="1280" height="720" framerate="82690000/5512747" bandwidth="1081600" codecs="avc1.4d001f"></representation>
 <representation width="1920" height="1080" framerate="82690000/5512747" bandwidth="2428800" codecs="avc1.4d0028"></representation>
 </adaptationset>
 </period>
</mpd>


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Why are there multiple timescale specified in a MP4/AVC container file ?
24 juin 2021, par Lexx32117I am currently parsing a MPEG-DASH stream initialization segment (generated by FFMPEG) and I noticed that the timescale is specified at multiple different places in my file :


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- In the movie header box (mvhd) : 1000
- In the media header box of my video track (mdhd) : 15360
- In the AVC Configuration box (avcC) more precisely in the VUI section of the sequence parameter set NAL unit : 60








Why is it specified in so many different places ? Why do they have different values ? Is there a hierarchy in these value ? For example does 60 overrides 15360 and 15360 overrides 1000 ?


Here's the command I used to generate the file I am looking at :


ffmpeg -f v4l2 -pixel_format yuyv422 -vcodec rawvideo -framerate 30 -video_size 640x360 -i /dev/video0 \
 -f dash -remove_at_exit false -use_template true -use_timeline true -streaming true -window_size 5 -extra_window_size 5 -seg_duration 5 -vcodec libx264 -b:v 1M -maxrate 1M -bufsize 2M -pix_fmt yuv420p -r 30 -s 640x360 -aspect 16:9 /var/www/html/media/live.mpd


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